Summary
The teaching of analog electronics often suffers from limited hands-on exposure and inadequate instructional tools, which can hinder students’ understanding of fundamental operational amplifier concepts. The design, implementation and performance evaluation of an LM741 operational amplifier-based training module intended for use in Electronics Engineering laboratory of the department of Electrical and Electronic Engineering, Michael Okpara University of Agriculture, Umudike is presented in this study. The trainer consists of a user-friendly interface for circuit implementation, a power supply, and various essential components such as resistors, capacitors, and LM741 op-amps. The developed trainer integrated multiple configurable circuits, including inverting and non-inverting amplifiers, voltage followers, and summing amplifiers allowing users to conveniently explore a wide range of operational amplifier applications on a single platform. The system was designed using standard analog circuit principles and implemented with readily available, low-cost components to ensure affordability and ease of replication. Proteus and Matlab software were used to design and simulate the op-amp trainer. Performance evaluation was conducted through a combination of theoretical and experimental values, focusing on key parameters such as output voltage, linearity, and signal fidelity. The results demonstrated that the trainer reliably reproduces theoretical expectations, with minimal deviation between calculated and measured outputs. Furthermore, the developed system provided a practical, cost-effective solution for bridging the gap between theoretical instruction and real-world application in analog electronics education. This work contributed to engineering education by offering an accessible and scalable training tool suitable for undergraduate laboratories and technical training institutions.
Index Terms
Integrated circuit Operational amplifier inverter amplifier non-inverter amplifier summing amplifierHow to cite this article
- Published: June 12, 2026
- Volume/Issue: Volume 10, Issue 1
- Pages: 111-121
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